23984520 has 96 divisors (see below), whose sum is σ = 83721600. Its totient is φ = 5480832.

The previous prime is 23984509. The next prime is 23984531. The reversal of 23984520 is 2548932.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23984509) and next prime (23984531).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3841 + ... + 7919.

It is an arithmetic number, because the mean of its divisors is an integer number (872100).

Almost surely, 2^23984520 is an apocalyptic number.

23984520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23984520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41860800).

23984520 is an abundant number, since it is smaller than the sum of its proper divisors (59737080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23984520 is a wasteful number, since it uses less digits than its factorization.

23984520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4107 (or 4096 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 23984520 is about 4897.3993098378. The cubic root of 23984520 is about 288.3878839916.

The spelling of 23984520 in words is "twenty-three million, nine hundred eighty-four thousand, five hundred twenty".